welcome to another episode of how to here on lineus Tech tips today we'll be
doing something that's a little bit more complicated but we'll give you a truly
awesome results if it is done correctly what I'm talking about is streaming
mixed reality footage what's that well if you have a VR headset such as the HTC
Vive that we have here in the office you can actually stream footage of yourself
doing things in a virtual game environment so to the viewer it will
look like you're walking around in a Fantastical World instead of just your
living room it does this by transposing the in-game environment onto a green
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description today we'll be showing you how to do this in fantastic Contraption
a game from Northway games we'd also like to take this opportunity to give
Northway a shout out as we base this guide on the mixed reality information
that they provided on their website you can find a link in the video description
down below all you need to get started other than a VR headset and a gaming rig
is a green screen an HDMI camcorder and either an internal or external capture
card with an HDMI port we'll be using an a media live gamer portable in our
demonstration today also make sure you have an HDMI cord long enough to reach
from your capture card to your camcorder as this will allow you to move your
camcorder to different places around the room so that you can adjust how your
stream will end up looking this is especially important if you're getting a
friend to act as a camera person instead of just putting your camera on a tripod
to get started go ahead and set up your HTC Vive according to the manufacturer's
instructions then get your capture card installed although external capture
cards are generally connected with a simple USB cord there are also internal
capture cards that slot into a PCI Express 1X slot if you'd like to keep
things a little bit tidier after you've gotten your Vive and your capture card
ready go ahead and start setting up your green screen green screens come in lots
of different sizes so you want to get something that can surround your play
area on at least two sides as well as something to cover the floor green
screen fabric actually works pretty well for this and it's not that bad to adjust
but you will need something to hang it on make sure your lighting is adequate
as well well generally bright light is better as it will allow your camera and
your software to more easily separate the green screen from everything else
next you'll want to set up your camcorder if you don't have one don't worry about buying something super
expensive as realistic effects can be achieved with many fairly inexpensive
models such as a Sony handicam just make
sure you aren't using something like a webcam or a phone camera as it probably
won't be good enough place your camera in a spot that will capture as much of
the play area as possible possible without placing areas outside of your
green screen setup in the frame you don't want to have your stream or
recording ruined because it looks like some far away world is directly bordered
by your living room couch connect your camera to your capture card's HDMI input
and you're ready to go at least on the hardware side next is the software setup
not all games support mixed reality but the Vive does have a number of games in
its library that do such as fantastic Contraption which has a setting that
enables multiple virtual cameras within the game this allows your capture
software to use depth information to combine the VR graphics and the feed
from your real life camcorder accurately
just open the settings menu in game make sure toggle depth camera is checked and
enter all zeros in the field labeled foreground color key you'll need to set
up your capture software next which can be a little bit more complicated as it
needs to combine three layers the game foreground The Game background and the
feed from your camcorder we're going to use open broadcasting software or OBS
download install it open it then hit the plus sign underneath sources and pick
window capture name this layer VR background and select fantastic
Contraption turn off cursor capture then enter the correct streaming resolution
for fantastic Contraption since the depth camera option splits the screen
into four quadrants you can only stream at one quarter of your computer
computer's resolution so if you're running a monitor at 1080p you'll need
to enter a resolution of 960x 540 but if
you have a 4K display you can stream at 1920 by 1080 once you've done this make
sure that you grab the corner of the layer and expand it to fill the entire
canvas next under sources add the webcam
layer by picking video capture device and then name it camcorder or honestly
whatever you'd like fill the whole cameras with the camera layer like you
did in the previous step then select color key under effects filters so that
your computer will process the green screen properly play with the similarity
and smoothness settings until things look good the last layer is the VR
foreground which you should now add by following a similar procedure to the
background however this time deselect the capture any full screen application
option and select allow transparency
make sure again to deselect capture cursor to enter a proper resolution and
to expand the layer to fill up the canvas the last step is to sync up your
camcorder with what's going on in the game make sure both the game and OBS are
open then adjust the virtual camera with the w a s d q and E keys this is a lot
easier if you can get a friend to stand in the play area with the controllers in
hand so you'll have a point of reference but this can be done by just placing the
controllers on something as well this will allow you to match up the in-game
camera system and your camcorder precisely so that the stream will look
realistic also be sure to adjust the feel the view settings by dragging the
third person fov slider in the in-game settings until the in-game virtual
controllers match up with wherever your friend is holding the real ones however
if you want to use a moving camera you can do this by taping a third Vive
controller to your camcorder which will cause the game to track its position
making for an even more interesting visual presentation just select handheld
mode in the in-game settings menu and sync the cameras using the previous
steps so after you've done all of this you're finally ready to stream or record
or whatever you want to do although there are a lot of steps involved the
result should make it look like you're firmly in the middle of a virtual world
it won't look exactly James Cameron like but you will be able to give your
viewers a really cool experience that can set your channel apart don't stop
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